Brand:JBL Model:T20BT Color: Black Weight: 16.5 gram Bluetooth Version: 4 cm Headphone Cable Length: 78 cm Bluetooth Transmitter Power: 0~4 dbm Bluetooth Frequency: 2.402GHz-2.48GHz Bluetooth Transmitted Modulation: GFSK,DQPSK, 8-DPSK Driver Size (mm): 12.5 Number of Drivers Per Ear: 1.0 Driver Sensitivity at 1kHz/1mW (dB): 100dB SPL/1mw Impedance (ohms): 32.0 Dynamic Frequency Response Range (Hz): 20 Hz - 20 kHz Battery Type: Polymer Li-ion Battery (3.7V, 120mAh) Charging Time (hours from empty): 2.0 Speed Charging Time (hours): 2.0 Talk Time (hours): 6.0 Play Time (hours): 6.0 JBL Pure Bass Sound / Flat Cable / Aluminum finishes Ear-bud / Rechargable battery / In-ear/ Wireless Hands Free Call Siri/ Google Now 1 Year Warranty JBL Pure Bass sound- Experience superior JBL sound with powerful bass that truly packs a punch Wireless Bluetooth Streaming- Wirelessly stream high-quality sound from any Bluetooth enabled device 6-hour battery life- Built-in rechargeable Li-ion battery supports up to 6 hours of playtime Call and music controls on ear cup- Control music playback and answer calls on the fly with buttons and microphone placed conveniently on the ear cup Hands-free calls- Control your sound and manage calls from your headphones with the convenient three-button remote with microphone 12.5mm Dynamic Driver-A pair of 12.5mm drivers punch out some serious bass, reproducing the powerful JBL Pure Bass sound Tangle-free flat cable- A flat cable that is durable and won’t tangle up in knots Brand No Brand SKU 100283136_NP-1020544631 connector_1 3.5MM Wearing type In-Ear wireless_connectivity Bluetooth Model T20BT